1. Find "Silence Unknown Callers"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-cbfa806f-0ea7-4b29-83e0-5b4ec110df0d.png?width=210&height=458)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-12123ebf-e54f-4ae8-b5eb-6d8193fde906.png?width=210&height=458)
Press Silence Unknown Callers.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-c0228de3-47c2-435b-8616-8f7b3ee96e44.png?width=210&height=458)
2. Ignore calls from unknown numbers
Press the indicator next to "Silence Unknown Callers" to turn on the function.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-75254571-b3e0-4155-b875-8070ec691f8d.png?width=210&height=458)
3. Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-75254571-b3e0-4155-b875-8070ec691f8d.png?width=210&height=458)